Discussions By Condition: Sexual conditions

Please help

My typical period is about a 26 or 27 day cycle lasting a total of about 6 days with about 2 days that are very heavy. The last two months though I had 20 day cycles. Last month I was VERY heavy...worse than usual. This past month though I needed to use tampons for a few days but I wasn't as heavy. It lasted forever though with all the days of spotting...about 10 days! So I ended on Sunday last week and starting this past Friday I am spotting! Brownish pink with red streaked mucus. It comes and goes. And it really isn't enough that I have been wearing anything for it. I also feel bloated and full in my lower abdomen. I am achey down in my lower abdomen too. And I just don't feel like myself. I took 2 pregnancy tests and both were negative. Any ideas? I can't get into the doctor until Wednesday but I just hoped someone could help me before then as I am going out of my mind with worry.